Question

Let (7,-2) be a point on the terminal side of theta.

Find the exact values of sin, sec, and tan.

Answer 1

hmm... okay, the point is (7,-2). so tan(theta) is y/x = -2/7
here's how:

now you know tan(theta). think you can find out sin and cos??

P.S.- take care of the signs while writing final answers for sin and cos because the point lies in the fourth quadrant where only COS is positive!